B3101

Keyless Entry Data Link Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Remote door opening/closing does not work
Keyless entry system does not respond
The malfunction indicator on the dashboard lights up

Causes

Open or short circuit in wiring harness
Keyless entry module malfunction
Problems with the antenna system
Software glitches
Corrosion of contacts or connectors

How to Fix

Check the integrity of the wiring harness
Diagnose the keyless entry module
Check the system antenna
Update system software
Clean or replace corroded contacts

Related codes

B3102 B3103 B3104